I have a '90 Ls and now i have no spark, no power to starter signal fuse #18 under dash, no power to main relay or to my ecu. I've replaced the relay, distriberator, ecu. It all started when my car wouldn't start and i got a jump. I was told this site could help. Two major auto shops told me to take my car off their lot. That they couldn't help me. So any help would be great.

 

Does this car even crank when you turn the key? Have you checked the fuses in the underhood fuse box?

 

yes the car cranks but no fire. all the other fuses are good too. the relays work as well.

 

Check the helms (See Dog's sig.), and check your ignition switch. It sounds like a wiring issue to me...

 

changed map sensor, that didnt work. any other ideas